A NEW MOBILE DIGITAL RADIO TRANSCEIVER EQUALIZATION / TRELLIS DECODING AND A CONCEPT USING LOW-COMPLEXITY COMBINED NEAR-OPTIMAL RECEIVER SYNC STRATEGY

For land-mobile digital radio links over timevariant frequency- selec tive multipat h channels, power and bandwidth efficient signaling and time diversity, as provided by interleaved trellis-coded modulation, are of great importance in a fading environment. In this contribution, a novel digital radio transceiver concept is presented that encompasses interleaved trellis coded modulation with large time diversity factor, a combined equalization/decoding scheme, and a quasi-optimal receiver sync strategy based on purely feedforward channel estimation. The resulting fully coherent and robust receiver is of remarkably low computational complexity. The average BER performance of such a transceiver operating over flat and selective 2-ray Rayleigh as well as typical land-mobile GSM channels is assessed via simulation. The results reveal the receiver’s robustness and good BER perfor

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